T-Spline Based Unifying Registration Procedure for Free-Form Surface Workpieces in Intelligent CMM

Autor: Shugui Liu, Zhenhua Han, Xinhui Ma, Guoxiong Zhang, Yingmo Wang, Xiaodong Zhang
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Surface (mathematics)
T-spline
Discretization
Computer science
Point cloud
02 engineering and technology
01 natural sciences
lcsh:Technology
lcsh:Chemistry
Position (vector)
0202 electrical engineering
electronic engineering
information engineering
General Materials Science
Computer vision
0101 mathematics
Instrumentation
lcsh:QH301-705.5
unified model
ComputingMethodologies_COMPUTERGRAPHICS
intelligent CMM
Fluid Flow and Transfer Processes
discrete
high accuracy evaluation
business.industry
Orientation (computer vision)
lcsh:T
Process Chemistry and Technology
General Engineering
020207 software engineering
Function (mathematics)
lcsh:QC1-999
Computer Science Applications
010101 applied mathematics
lcsh:Biology (General)
lcsh:QD1-999
lcsh:TA1-2040
Development (differential geometry)
Artificial intelligence
business
lcsh:Engineering (General). Civil engineering (General)
lcsh:Physics
Zdroj: Applied Sciences, Vol 7, Iss 10, p 1092 (2017)
Applied Sciences; Volume 7; Issue 10; Pages: 1092
ISSN: 2076-3417
Popis: With the development of the modern manufacturing industry, the free-form surface is widely used in various fields, and the automatic detection of a free-form surface is an important function of future intelligent three-coordinate measuring machines (CMMs). To improve the intelligence of CMMs, a new visual system is designed based on the characteristics of CMMs. A unified model of the free-form surface is proposed based on T-splines. A discretization method of the T-spline surface formula model is proposed. Under this discretization, the position and orientation of the workpiece would be recognized by point cloud registration. A high accuracy evaluation method is proposed between the measured point cloud and the T-spline surface formula. The experimental results demonstrate that the proposed method has the potential to realize the automatic detection of different free-form surfaces and improve the intelligence of CMMs.
Databáze: OpenAIRE
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